Home / 764,669.94-1,147,193.58-380,601.78

Finding the Fourth Proportional to 764,669.94, 1,147,193.58 and 380,601.78

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Solution

The fourth proportional to 764,669.94, 1,147,193.58 and 380,601.78 is: 570,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,669.94 : 1,147,193.58 = 380,601.78 : x
  2. Step 2: Convert to fraction form
    764,669.94/1,147,193.58 = 380,601.78/x
  3. Step 3: Cross multiply
    764,669.94x = 1,147,193.58 × 380,601.78
  4. Step 4: Simplify right side
    764,669.94x = 436,623,918,552.57
  5. Step 5: Solve for x
    x = 436,623,918,552.57/764,669.94
  6. Step 6: Final answer
    x = 570,996.58

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.